Convert from pulgada to caliber

Unit Definition (pulgada)
The pulgada is a traditional Spanish inch, equal to 1/12 pie. The pulgada varies from about 23.2 to 24.1 millimeters (0.913 to 0.949 inch).

Unit Definition (caliber)
The caliber is a unit used to express the bore diameter of a gun. Traditionally, the diameter is stated in inches, so that ".22 caliber" refers to a pistol having a bore of 0.22 inches (5.588 mm). So the caliber is actually equivalent to the inch. The usage of the term "caliber" is actually now in decline, because bore diameters of many guns are now stated in millimeters. "Caliber" is the American spelling; elsewhere the unit is often spelled "calibre."